/Engine/Source/Runtime/Engine/Public/PrecomputedLightVolume.h
Interpolates incident radiance to Position.
void InterpolateIncidentRadianceBlock ( const [FBoxCenterAndExtent](API\Runtime\Core\Math\FBoxCenterAndExtent) & BoundingBox, const FIntVector & QueryCellDimensions, const FIntVector & DestCellDimensions, const FIntVector & DestCellPosition, [TArray](API\Runtime\Core\Containers\TArray)< float > & AccumulatedWeights, [TArray](API\Runtime\Core\Containers\TArray)< FSHVectorRGB2 > & AccumulatedIncidentRadiance ) const